<template>
  <div>
    <!--面包屑导航区-->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>数据统计</el-breadcrumb-item>
      <el-breadcrumb-item>数据报表</el-breadcrumb-item>
    </el-breadcrumb>
    <!--卡片视图区-->
    <el-card>
      <!-- 2.为 ECharts 准备一个具备大小（宽高）的 DOM -->
      <div id="main" style="width: 750px;height:400px;"></div>
    </el-card>
  </div>
</template>

<script>

  // 1.导入Echarts
  import echarts from 'echarts'
  import _ from 'lodash'

  export default {
    created() {
    },
    // 此时页面上的元素，已经被渲染完毕了
    async mounted() {
      // 3.基于准备好的dom，初始化echarts实例
      var myChart = echarts.init(document.getElementById('main'));
      const {data:res} = await this.$http.get(`reports/type/1`)
      if (200!==res.meta.status) {
        return this.$message.error('获取折线图数据失败！')
      }
      // 4.准备数据和配置项
      // 模拟数据
      // var option = {
      //   title: {
      //     text: 'ECharts 入门示例'
      //   },
      //   tooltip: {},
      //   legend: {
      //     data:['销量']
      //   },
      //   xAxis: {
      //     data: ["衬衫","羊毛衫","雪纺衫","裤子","高跟鞋","袜子"]
      //   },
      //   yAxis: {},
      //   series: [{
      //     name: '销量',
      //     type: 'bar',
      //     data: [5, 20, 36, 10, 10, 20]
      //   }]
      // };
      // 5. 展示数据

      const result = _.merge(res.data,this.options)

      myChart.setOption(result)
    },
    data() {
      return {
        // 需要合并的数据
        options: {
          title: {
            text: '用户来源'
          },
          tooltip: {
            trigger: 'axis',
            axisPointer: {
              type: 'cross',
              label: {
                backgroundColor: '#E9EEF3'
              }
            }
          },
          grid: {
            left: '3%',
            right: '4%',
            bottom: '3%',
            containLabel: true
          },
          xAxis: [
            {
              boundaryGap: false
            }
          ],
          yAxis: [
            {
              type: 'value'
            }
          ]
        }
      }
    },
    methods: {},
    computed: {},
    name: "Report"
  }
</script>

<style scoped>

</style>
